Which light?

[cherabin]

My 14 liters cube nano tank has HELP soil and flora includes Marsilea hirsuta, tenullus and narrow leaf java fern. No CO2 injection but dosing of 0.2-0.3ml excel daily. I have 2 light sets to choose from, either a 13w or 7w PLL.

Which one should I utilize? Many thanks in advance for the advices.

[aia414]

you can try the 7w PLL, I believe it shd be enough